Powering Accessories Struggles - Don't let this happen to you!

[TeslaKen]

I don't need any pics personally, if there are 5 missing pins it's probably set up for driver's side.
Beyond that, if pins 8 & 9 are routed through correctly, then the tweeter should work.

Sadly I don't think they use the same color coding for the wires so I would have to pull the harness and put a continuity tester on pins 8 and 9 on each end and see what I get...

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[pricedm]

Based on the title of this thread I thought it was going to be about how to avoid power struggles between you and your spouse about who got to drive the Cybertruck!

Power struggle between a mirror and a speaker is almost as bad! Oh wait, you said between you and spouse...never mind lol.

Tough for so many to have issues with these digital rear view mirrors. Conceptually I wanted one. Doubtful I will buy one any time soon. I feel for anyone dealing with this issue.

 

[HaulingAss]

Since one of their service reps called me “honey” I hope to be expedited when a fix is issued! Thanks guys!

I'm pretty sure "honey" is not one of your designated pronouns! These days that's a valid lawsuit, probably worth at least $10K, if not $100K.

 

[mongo]

Sadly I don't think they use the same color coding for the wires so I would have to pull the harness and put a continuity tester on pins 8 and 9 on each end and see what I get...

Yah, or all the same color...
Just info for the next time you dive in.

 

[TeslaKen]

Yah, or all the same color...
Just info for the next time you dive in.

I just published the Light Strip article here : LED Dash Light Strip by Hansshow
and there is a pic of the power connector in question before I installed it if that help, obviously testing it with a continuity tester is what needs to be done but I thought you might want to see it.

 

[TeslaKen]

Here is the harness in question:

 

[YukonJack]

I just received my V2 Rearview last week as I was planning to upgrade from V1.

I used a continuity tester and rang out the harness and all wires ring through except pin 8.

The female side of the connector has a yellow wire but it does not pass through to the male side pin 8.

Pin 8 in the Tesla diagram is listed as "Speaker 25mm Tweeter - A - Pillar Right".

Pin 8 ties into the Hansshow harness to both the ACC & BATT+ wires.

Pin 11 is tied to GND.

The Hansshow tranformer is listed as DC12 - 24V input, Output DC5V, 2.5A.

Problem is not fixed yet.

With Grok's help and links to the schematics asking for a full trace and details this is what it says:


Pin 8 is specifically associated with the right A-pillar tweeter in Tesla diagrams. However, this is not a traditional analog audio signal wire (AC voltage for sound reproduction). Instead, the Cybertruck's audio system utilizes an Automotive Audio Bus (A2B) digital network for peripheral speakers like the tweeters. The A2B bus is a daisy-chained, two-wire system (differential twisted pair) that transmits digital audio, control data, and phantom power over the same lines.


Trace to Source: The connector X0930M-6 ties into the Cybertruck's distributed audio architecture, where the central audio processor (likely integrated into a body controller or infotainment module) acts as the A2B master node. This master supplies power and signals downstream to slave nodes, including the A-pillar tweeter. The wiring harness (PN 1682255-00-F for the A-pillar side assembly) routes these signals upward from the footwell connector to the tweeter mounted in the upper A-pillar trim.


A2B Bus Operation: A2B embeds synchronous multi-channel audio (I2S/TDM format) with a superimposed DC bias voltage for phantom powering remote nodes. Slave devices like the tweeter extract this DC power to operate their internal amplifiers and decoders, eliminating the need for separate power wires.

• Voltage on the Bus: In automotive A2B implementations, the phantom power DC voltage is typically in the range of 5-9V (often around 8V nominal, with drops of ~0.3-0.5V per node due to line resistance and load). However, some systems configure higher voltages (up to 24V in high-power variants) for greater current delivery (up to 2A total bus capacity in newer A2B transceivers like AD243x series). While exact specs for the Cybertruck aren't publicly detailed, the effective voltage at peripheral nodes like the tweeter is close to 12VDC in many vehicle setups—accounting for battery compatibility (traditional 12-14V systems) and step-down from the Cybertruck's 48V low-voltage architecture. This DC bias is what Hansshow taps into via pin 8 for their harness, as it's a convenient switched power source (active when the vehicle is on) that aligns with their 12-24V transformer input.

The tweeter itself doesn't "receive" raw 12VDC directly for audio; the DC phantom power enables the slave node's electronics, while the AC-component data signal handles sound. Interrupting pin 8 (as in the Hansshow harness) breaks the A2B chain, causing the tweeter to lose power and signal—explaining no-sound issues reported in installs. If you're measuring, expect ~8-12VDC on that pin relative to ground (pin 11) when the system is active, but use caution to avoid shorting the differential bus. For safe tapping, consider a proper A2B-compatible injector or alternate power source like the passenger kick panel.

 

[TeslaKen]

What does it mean by passenger kick panel?

 

[dLux]

Went through the thread. Impressive! I just need somebody to produce an A2B compatible Y-connector that can be daisy chained into the car and I can plug my rear-view mirror (from Tesstudio) into it (and not use the daisy chain capabilities of the harness provided).

So, does anybody want to make a business by selling these Y-cables? I'd be happy to buy one (or more)!

I've just tested and I have 3 mute speakers since I installed the mirror and I have not even realized it!

 

[mongo]

I just received my V2 Rearview last week as I was planning to upgrade from V1.

I used a continuity tester and rang out the harness and all wires ring through except pin 8.

The female side of the connector has a yellow wire but it does not pass through to the male side pin 8.

Pin 8 in the Tesla diagram is listed as "Speaker 25mm Tweeter - A - Pillar Right".

Pin 8 ties into the Hansshow harness to both the ACC & BATT+ wires.

Pin 11 is tied to GND.

The Hansshow tranformer is listed as DC12 - 24V input, Output DC5V, 2.5A.

Problem is not fixed yet.

With Grok's help and links to the schematics asking for a full trace and details this is what it says:


Pin 8 is specifically associated with the right A-pillar tweeter in Tesla diagrams. However, this is not a traditional analog audio signal wire (AC voltage for sound reproduction). Instead, the Cybertruck's audio system utilizes an Automotive Audio Bus (A2B) digital network for peripheral speakers like the tweeters. The A2B bus is a daisy-chained, two-wire system (differential twisted pair) that transmits digital audio, control data, and phantom power over the same lines.


Trace to Source: The connector X0930M-6 ties into the Cybertruck's distributed audio architecture, where the central audio processor (likely integrated into a body controller or infotainment module) acts as the A2B master node. This master supplies power and signals downstream to slave nodes, including the A-pillar tweeter. The wiring harness (PN 1682255-00-F for the A-pillar side assembly) routes these signals upward from the footwell connector to the tweeter mounted in the upper A-pillar trim.


A2B Bus Operation: A2B embeds synchronous multi-channel audio (I2S/TDM format) with a superimposed DC bias voltage for phantom powering remote nodes. Slave devices like the tweeter extract this DC power to operate their internal amplifiers and decoders, eliminating the need for separate power wires.

• Voltage on the Bus: In automotive A2B implementations, the phantom power DC voltage is typically in the range of 5-9V (often around 8V nominal, with drops of ~0.3-0.5V per node due to line resistance and load). However, some systems configure higher voltages (up to 24V in high-power variants) for greater current delivery (up to 2A total bus capacity in newer A2B transceivers like AD243x series). While exact specs for the Cybertruck aren't publicly detailed, the effective voltage at peripheral nodes like the tweeter is close to 12VDC in many vehicle setups—accounting for battery compatibility (traditional 12-14V systems) and step-down from the Cybertruck's 48V low-voltage architecture. This DC bias is what Hansshow taps into via pin 8 for their harness, as it's a convenient switched power source (active when the vehicle is on) that aligns with their 12-24V transformer input.

The tweeter itself doesn't "receive" raw 12VDC directly for audio; the DC phantom power enables the slave node's electronics, while the AC-component data signal handles sound. Interrupting pin 8 (as in the Hansshow harness) breaks the A2B chain, causing the tweeter to lose power and signal—explaining no-sound issues reported in installs. If you're measuring, expect ~8-12VDC on that pin relative to ground (pin 11) when the system is active, but use caution to avoid shorting the differential bus. For safe tapping, consider a proper A2B-compatible injector or alternate power source like the passenger kick panel.

11 is ground, but 8 is an analog tweeter drive, not A2B. If something is being powered from it, the amp must be biasing the speaker at a mid level positive voltage rather than using a bipolar drive.

 

[YukonJack]

What does it mean by passenger kick panel?

The fix here is Hannshow providing a harness with the pass through for pin 8.

Sometimes the deeper you go with Grok, or other AI, the more validation you need to do.

But I asked about other reliable power sources an it spit out:

Passenger Kick Panel / Footwell Area (Non-X0930 Sources): Some dashcam and accessory installs use separate taps in the passenger kick panel (near but not on X0930) for ~12V switched power. Exact pins vary, but owners report success without tweeter issues. Test with a multimeter for switched 12-15V on nearby harnesses.​

Then when I tried to clarify I get:

Passenger Kick Panel Power Alternatives (Cybertruck-Specific)​

​

The passenger-side kick panel (lower footwell trim near the door) in the Cybertruck doesn't have a traditional fuse box like older Teslas (the truck uses electronic fuses/breakers instead). There's also no widely documented "easy" 12-15V switched or constant tap directly in that area outside of the X0930M-6 connector (which you're already avoiding due to the A2B audio issues). Most owners report that probing nearby harnesses in the kick panel yields limited or no suitable low-voltage (12-24V) sources without risking errors or interruptions to other systems.​

​

​

That said, here are the practical alternatives discussed and used by Cybertruck owners for ~12-15V power (suitable for your Hansshow mirror's 12-24V transformer input), focusing on cleaner/safer options:​

​

1. Rearview Mirror / Autopilot Camera Housing (Upper Windshield) – Most Popular for Overhead Accessories​

​

• This is the go-to spot for radar detectors, dashcams, and digital rearview mirrors.
  • There's a 2-pin connector (red + black wires) inside the autopilot pod/cover behind the rearview mirror that provides ~12-15.5V switched power (active when the truck is on/awake, turns off in sleep mode).
  • Voltage: Typically 12-15V (some measure up to 15.5V), perfect match for your transformer's range.
  • How to access: Remove the mirror (twist/off) and pop open the black plastic autopilot housing (clips/pry gently – follow YouTube videos like Everyday Chris or Rick Zoerb).
  • Tapping method: Use a "mirror tap" kit (e.g., Escort/BlendMount style with flat blades) or custom T-harness (parts from DigiKey for pass-through). Many owners add a step-down if needed, but your Hansshow transformer handles it directly.
  • Pros: Clean routing (hide wires in headliner), switched behavior matches accessory needs (powers off with truck for proper shutdown).
  • Cons: Requires careful disassembly; low amp draw recommended (~1-2A safe).
  • Commonly used for Hansshow/Yeslak/Pormido mirrors and radar detectors without audio/tweeter issues.

2. 120V Cabin Outlets + 120V-to-12V Converter (No Wiring Needed)​

​

• Plug a compact 120V AC to 12V DC converter(cigarette lighter style, 10-20A rated) into one of the cabin 120V outlets:
  • Rear console (behind center screen) – most convenient.
    • Under rear screen or bed outlets.
  • Then route a 12V cable (or USB-C if your mirror supports) up the A-pillar/headliner to the mirror.
  • Voltage output: Stable 12-13.8V, high amperage available.
  • Examples: Owners use Anker/Similar converters hidden under seats or in console; some add multi-port strips.
  • Pros: Zero splicing/tapping, reversible, high power, outlets stay on appropriately (switched with vehicle state).
  • Cons: Slight bulk (hide the converter), but very reliable for mirrors/dashcams.
  • Bonus: Outlets power off cleanly with the truck, helping with your shutdown issues.

3. Other Nearby/Alternative Spots (Less Common in Kick Panel)​

​

• No confirmed 12V purple wire or similar (like Model Y) in Cybertruck kick panel – owners probing there often hit 48V lines or nothing usable.
  • Trailer hitch harness (if equipped): Some tap the 7-pin for constant ~12V, but it's rear-located and may not sleep properly.
  • Avoid 48V taps (frunk/roof) unless using a buck converter – not ideal for low-draw mirror.

 

[TeslaKen]

Ok thank you!

 

[That Beast Mode]

Anyone gotten a response from Hansshow on this or found a solution?

 

[That Beast Mode]

Went through the thread. Impressive! I just need somebody to produce an A2B compatible Y-connector that can be daisy chained into the car and I can plug my rear-view mirror (from Tesstudio) into it (and not use the daisy chain capabilities of the harness provided).

So, does anybody want to make a business by selling these Y-cables? I'd be happy to buy one (or more)!

I've just tested and I have 3 mute speakers since I installed the mirror and I have not even realized it!

Wow, I didn't test all the speakers, just the ones @TeslaKen showed in the video. I didn't think it would affect others too. This is a pretty shitty thing to do to your customers.

 

[Phenmonolimit]

I just received my V2 Rearview last week as I was planning to upgrade from V1.

I used a continuity tester and rang out the harness and all wires ring through except pin 8.

The female side of the connector has a yellow wire but it does not pass through to the male side pin 8.

Pin 8 in the Tesla diagram is listed as "Speaker 25mm Tweeter - A - Pillar Right".

Pin 8 ties into the Hansshow harness to both the ACC & BATT+ wires.

Pin 11 is tied to GND.

The Hansshow tranformer is listed as DC12 - 24V input, Output DC5V, 2.5A.

Problem is not fixed yet.

With Grok's help and links to the schematics asking for a full trace and details this is what it says:


Pin 8 is specifically associated with the right A-pillar tweeter in Tesla diagrams. However, this is not a traditional analog audio signal wire (AC voltage for sound reproduction). Instead, the Cybertruck's audio system utilizes an Automotive Audio Bus (A2B) digital network for peripheral speakers like the tweeters. The A2B bus is a daisy-chained, two-wire system (differential twisted pair) that transmits digital audio, control data, and phantom power over the same lines.


Trace to Source: The connector X0930M-6 ties into the Cybertruck's distributed audio architecture, where the central audio processor (likely integrated into a body controller or infotainment module) acts as the A2B master node. This master supplies power and signals downstream to slave nodes, including the A-pillar tweeter. The wiring harness (PN 1682255-00-F for the A-pillar side assembly) routes these signals upward from the footwell connector to the tweeter mounted in the upper A-pillar trim.


A2B Bus Operation: A2B embeds synchronous multi-channel audio (I2S/TDM format) with a superimposed DC bias voltage for phantom powering remote nodes. Slave devices like the tweeter extract this DC power to operate their internal amplifiers and decoders, eliminating the need for separate power wires.

• Voltage on the Bus: In automotive A2B implementations, the phantom power DC voltage is typically in the range of 5-9V (often around 8V nominal, with drops of ~0.3-0.5V per node due to line resistance and load). However, some systems configure higher voltages (up to 24V in high-power variants) for greater current delivery (up to 2A total bus capacity in newer A2B transceivers like AD243x series). While exact specs for the Cybertruck aren't publicly detailed, the effective voltage at peripheral nodes like the tweeter is close to 12VDC in many vehicle setups—accounting for battery compatibility (traditional 12-14V systems) and step-down from the Cybertruck's 48V low-voltage architecture. This DC bias is what Hansshow taps into via pin 8 for their harness, as it's a convenient switched power source (active when the vehicle is on) that aligns with their 12-24V transformer input.

The tweeter itself doesn't "receive" raw 12VDC directly for audio; the DC phantom power enables the slave node's electronics, while the AC-component data signal handles sound. Interrupting pin 8 (as in the Hansshow harness) breaks the A2B chain, causing the tweeter to lose power and signal—explaining no-sound issues reported in installs. If you're measuring, expect ~8-12VDC on that pin relative to ground (pin 11) when the system is active, but use caution to avoid shorting the differential bus. For safe tapping, consider a proper A2B-compatible injector or alternate power source like the passenger kick panel.

I have no idea what you just said but who do I zelle for the fix?

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